Speaking to Sky News on Friday (17 June), Scully highlighted the possibility for part-time workers to be "more productive".
His comments came as Gatwick announced it is reducing the number of daily flights during its summer period to help cope with workforce shortages and avoid cancellations.
"When you start up anything almost from scratch, because there were very few flights going through Heathrow at some points, it takes time to bring the staff back in," Scully said.
